`

js 手写table排序

    博客分类：
  • web
js table排序 
阅读更多 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <title>table order</title>
  <script type="text/javascript">
	function _order(_index,orderType){//param1：列标;param2:升序或降序排列
		var tabDiv = document.getElementById("tabDiv");
		var trs = tabDiv.getElementsByTagName("tr");
		var ot = "asc";
		if(orderType == "asc"){
			ot = "desc";
		}
		//从新设置点击th列头的click事件
		trs[0].getElementsByTagName("th")[parseInt(_index)]
		.setAttribute("onclick","_order('"+_index+"','"+ot+"')");
		//存取被排序列所有列值 ，元素格式 obj ={tr索引,列值}
		//列值用来排序，tr索引用来排序后找到对应tr
		var vals = [];
		for(var i=1;i<trs.length;i++){
			var tds = trs[i].getElementsByTagName("td");
			for(var j=0;j<tds.length;j++){
				if(j==_index){//只获取索引于被点击th索引相同的td，即同一列
					//获取对应元素
					var obj = {"trIndex":i,"tdVal":tds[j].innerHTML};
					vals.push(obj);
				}
			}
		}
		//判断排序方式
		if(orderType=="asc"){
			vals = array_order_asc(vals);
		}else{
			vals = array_order_desc(vals);
		}
		//排序后，重绘table
		var cont=trs[0].innerHTML;
		for(var k=0;k<vals.length;k++){
			cont +="<tr>"+trs[vals[k].trIndex].innerHTML+"</tr>";
		}
		var dv =document.getElementById("tabDiv");
		dv.innerHTML = "<table border='1' >"+cont+"</table>";
	}
	//排序 冒泡，只按td中字符的char值比较，中文不考虑
	//asc
	function array_order_asc(arr){
		for(var i=0;i<arr.length;i++){
			for(var j = 0;j<arr.length-i-1;j++){
				var size = arr[j].tdVal.length;
				if(arr[j+1].tdVal.length<size){//比较次数按列值最短的
					size = arr[j+1].tdVal.length;
				}
				for(var m = 0;m<size;m++){
					var char1 = arr[j].tdVal.charAt(m);
					var char2 = arr[j+1].tdVal.charAt(m);
					if(char1==char2){//对应位置字符相等，继续比较下一位
						continue;
					}
					if(char1>char2){
						var temp = arr[j];
						arr[j] = arr[j+1];
						arr[j+1] = temp;
					}
					break;
				}
			}
		}
		return arr;
	}
	//desc
	function array_order_desc(arr){
		for(var i=0;i<arr.length;i++){
			for(var j = 0;j<arr.length-i-1;j++){
				var size = arr[j].tdVal.length;
				if(arr[j+1].tdVal.length<size){
					size = arr[j+1].tdVal.length;
				}
				for(var m = 0;m<size;m++){
					var char1 = arr[j].tdVal.charAt(m);
					var char2 = arr[j+1].tdVal.charAt(m);
					if(char1==char2){
						continue;
					}
					if(char1<char2){
						var temp = arr[j];
						arr[j] = arr[j+1];
						arr[j+1] = temp;
					}
					break;
				}
			}
		}
		return arr;
	}
  </script>
 </head>

 <body>
	<div id="tabDiv" >
		<table border='1'>
			<tr>
				<th></th>
				<th onclick="_order('1','asc')" style="cursor:hand">a</th>
				<th onclick="_order('2','asc')" style="cursor:hand">b</th>
			</tr>
			<tr>
				<td>1</td>
				<td>shanghai</td>
				<td>one</td>
			</tr>
			<tr>
				<td>2</td>
				<td>beijing</td>
				<td>two</td>
			</tr>
			<tr>
				<td>3</td>
				<td>jinan</td>
				<td>three</td>
			</tr>
			<tr>
				<td>4</td>
				<td>qingdao</td>
				<td>four</td>
			</tr>
			<tr>
				<td>5</td>
				<td>guangzou</td>
				<td>five</td>
			</tr>
		</table>
	</div>
 </body>
</html>
1
顶
1
踩
分享到：
| oracle pl/sql递归查询
评论
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

Magicbox
Global site tag (gtag.js) - Google Analytics